Build fails on Input/Output Errors

Build (/usr/bin/uck-gui ) started at 2015-02-22 14:08:56
>> Ubuntu Customization Kit 2.4.7 on Ubuntu 14.10, 3.16.0-30-generic x86_64
Starting CD remastering on Sun Feb 22 14:08:56 CST 2015
Customization dir=/home/patrickdickey/tmp/customization-scripts
Mounting ISO image...
mount: /dev/loop0 is write-protected, mounting read-only
Unpacking ISO image...
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/casper/filesystem.squashfs': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/casper/filesystem.squashfs': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/casper/initrd.lz': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/casper/initrd.lz': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/casper/vmlinuz.efi': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/casper/vmlinuz.efi': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/install/mt86plus': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/install/mt86plus': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/boot/grub/efi.img': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/boot/grub/efi.img': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/boot/grub/font.pf2': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/boot/grub/font.pf2': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/boot/grub/grub.cfg': Input/output error

<Snipped to conserve space, since I can't attach the file....>

cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/isolinux/vi.tr': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/isolinux/vi.tr': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/isolinux/zh_CN.hlp': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/isolinux/zh_CN.hlp': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/isolinux/zh_CN.tr': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/isolinux/zh_CN.tr': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/isolinux/zh_TW.hlp': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/isolinux/zh_TW.hlp': Input/output error
cp: error reading '/home/patrickdickey/tmp/remaster-iso-mount/isolinux/zh_TW.tr': Input/output error
cp: failed to extend '/home/patrickdickey/tmp/remaster-iso/isolinux/zh_TW.tr': Input/output error
Unmounting /home/patrickdickey/tmp/remaster-iso-mount...
Failed to unpack ISO from /home/patrickdickey/tmp/remaster-iso-mount to /home/patrickdickey/tmp/remaster-iso
Build ended at 2015-02-22 14:09:17

One other thing is, I only selected "en" for the languages. So I'm not sure why it's extracting files from the other language packs.

Hopefully this is enough information to get the problem solved. Thanks.:)
Patrick.

"Input/output error" usually indicates a file system error on the partition.
Can you boot into a live system and perform a full file system check on the partition that contains /home/patrickdickey/tmp/ ?

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